package com.zxt.content.common.utils;

public class StringUtils {

    public static boolean isEmpty(Object str) {
        return str == null || "".equals(str);
    }

    public static boolean isNotEmpty(Object str) {
        return !isEmpty(str);
    }

    public static String trim(String str) {
        return str == null ? null : str.trim();
    }
}
